Mine seemed to be dead too. I tried reseting the device but without any success. The only fix by now is to remove Chromecast from HDMI, but keep power cable plugged in. So i start my tv without Chromecast being connected to hdmi port, and after the led on the chromescast became steady white, no blinking, i would connect it to it. It worked that way. Had to do this before each time i start my tv. I hope it will help u and hope that google will fix this in future update.